Loom for weaving looped or terry fabrics



(No Model.)' 1

J. A. CAMPBELL. LOOMI'OR WEAVI NG LOOPED 0R TERRY FABRICS.

No; 373,175. Patelifed Nov. 15, 1887.

Wz'i'negses:

IINITED STATES PATENT Orricaf J ADDISON CAMPBELL, OF PHILADELPHIA, PENNSYLVANIA.

LOOM' FOR WEAVING LOIOPED OR TERRY FABRICS.

SPECIFICATION forming part of Letters Patent No. 373,175, dated November 15, 1887. Application filed January 31 1887. Serial No. 225,982. (No model.)

To all whom it mag concern.-

Be it known that I, J. ADDIsoN CAMPBELL, of the city and county of Philadelphia, State of Pennsylvania, have made certain new and useful Improvements in Looms for Weaving Looped or Terry Fabrics, of which the following is such an exact, full, and clear description as to enable any person skilledin the construction of such looms to .make and use the same, reference being had to the annexed drawin s.

Ihis invention relates to a class of looms for weaving the looped pile fabric known as terry-cloth; and the object of the improvement is the simplification of the mechanism and the protection of the parts from the accumulation of dust, which would otherwise choke and clog the action.

In weaving terry-cloth the operation consists in partially beating up certain picks of weft-thread, and afterward further beating upor driving home those picks, causing certain of the warp-threads to rise up from the body in loops.

In the drawings, Figure 1 is a sectional elevation of a loom, showing the improvement attached. Fig. 2 is a sectional view showing the parts in the position for partially beating up the weft-threads, and Fig. 3 is a similar View of the parts in the position for driving the weft-threads home and causing the loops to rise up. v

Similar letters refer to similar parts throughout the drawings. V

X X is the frame of the loom, and A is the breast-beam.

B is the lay of the loom, which is mounted to swing in the usual manner, motion being given to it by the pitmen G and crank-shaft U.

On the lay B is the shuttle-race I, which carries the lower part of the reed K, the upper part of the reed K being carried by supports rising from the lay B, as shown at J. The shuttle-race I is fitted on the lay B in such a manner that it is free to slide backward or forward as it may be acted upon by the other parts.

T is a spiral spring recessed into the lay B,

and acting to force the shuttle-race land reedbreast-beam A, and carrying on its lower portion a pointed guide, 0, while in the upper portion of the slide 0 is an adjustable set. screw, L.

H is a sliding catch attached to the front of the vibrating lay B, and carrying at its lower end a roller, D, which roller D is connected by a link, a, to a bearing, F, attached to the lay B.

S is an arm pivoted to the frame of the loom and inserted into the slideO in such a manner as to be capable of moving the slide 0 up or down, as the case may be.

V is the camshaft of the loom, which is driven from the crank-shaft U by means of the gear-wheels M and N, which gearwheels may be of any desired ratio.

0 is acam revolved by means of the said gears, and P and Q are levers to transmit the motion imparted by the cam to the arm S through the rod R.

Y is a spring for the purpose of keeping the lever P in contact with the cam O.

The action of the various parts is as follows: The crank-shaft U being set in motion, the lay B vibrates back and forth through the action of the pitmen G. The slide 0, with the set-screw L and pointed guide 0, being in the position shown in Figs. 1 and 2, which is its normal position, the roller D rolls under the pointed guide 0', and so draws the sliding catch Hinto its lower position, as shown in Fig. 2, when the lay B makes its forward stroke. During the forward stroke of the lay B under these circumstances the reed K' pushes the weftthread before it until the sliding shuttle-race I comes in contact with the head, of the setscrew L. This prevents the reedfrom moving farther forward, and so the lay B continues to move through the remainder of its stroke, while the shuttle-race I and reed K remain stationary, this action of the lay B compress ing the spring T. As the lay B thus moves under the sliding shuttle-race I a space or gap, Z, is formed equal in width to the amount of space moved over by the lay B after the shuttle-race I has been stopped by the set-screw L. A gap of this character is also formed in looms already in use for weaving terry-cloth where the lower part of the reed only moves upon the lay; but I arrange the entire shuttlerace to slide upon the top of the lay, so as to cover up this gap and prevent the admission of dust, as already described. As the crankshaft U continues to revolve several strokes or vibrations of the lay B are thus made and several picks of weft beaten up close together, the number being determined by the ratio of the gear-wheels M and N. As the camshaft V revolves the cam 0 presses down the lever 1?, extending the spring Y, and through the means of the lever Q and connecting-rod R the arm S is depressed and the slide 0, with its pointed guide 0 and set-screw L, moves downward, assuming the position shown in Fig. 3. As the set-screw L is now down out of the way, the spring T keeps the sliding shuttle-race I forced forward, and as the lay B makes its forward stroke the roller D rides up on the pointed guide 0, pushing the sliding catch H between the overhanging ledge of the shuttle-race I and the lay B, so that the sliding shuttle-race I makes the full forward stroke of the lay, carrying with it the reed K, and beating up the picks previously thrown, and causing the warp-threads to rise up in loops, as previously described. \Vhen the cam O revolves farther, the spring Y draws the lever P into the position shown in Fig. 1, and the parts assume the normal position shown in Figs. 1 and 2, and so remain until the camshaft has made another revolution.

It is evident that by changing the configuration of the cam O and the ratio of the gearwheels M and N the loops may be produced at any required intervals.

space is covered at all times and the action of the loom thereby much improved.

Having thus described myinveution, what I claim as new, and desire to secure by Letters Patent, is

1. The combination, with a loom-frame and lay, of a sliding shuttle-race, a swinging reed connected to said shuttleraee, adj ustable setscrews for engagement with said sliding shnttle-race in the forward movement of the lay, and means, substantially as described, for raising and lowering the adjustable set-screws into and out of position for engagement with the sliding shuttle-race and swinging reed.

2. The combination of the adjustable setscrew L, movable shuttle-race I, slide 0, carrying the set-screw L, means for moving the slide vertically, the lay B, the spring 'I, reed K, and the latch H and its operative devices, substantially as described.

J. ADDISON CAMPBELL.

Witnesses:

W. E. LONDON, HENRY H. SUPLEE. 

